Subsink structure



Nov. 19, 1935. 5 F005; 2,021,410

SUBSINK STRUCTURE Filed March '1, 1955 000000000 o0 ooo ooo0 oooooopoooo'oooop'oo 00000 0.0 00000 Patented Nov. 19, 1935 UNITED STATES PATENTOFFICE SUBSINK STRUCTURE Edward Foose, Wheeling, W. Va. ApplicationMarch 7, 1935, Serial No. 9,799

9 Claims.

This invention relates to subsink structures and it has for its primaryobject the provision of a sanitary drain opening of simple constructionprovided with a stopper which may be set in either open or closedposition without complete withdrawal from said opening and which, inboth said positions, underlies the upper surface of the adjacent portionof the sink-bottom so as to afford no hindrance to the sliding of dishesor utensils thereover.

Another object is to provide at the inlet. to a sub-sink chamber such astopper on a support which is firmly seated within the chamber, and soplaced that it will not be easily unseated by the moving of utensilsover the bottom of the sink.

And another object is to provide a device of the character mentionedhaving a strainer underlying the stopper, both stopper and strainerbeing readily removable, as for cleaning.

And a still. further object is to provide a sink stopper-and-strainerconstruction having relatively few parts of simple construction easilydisassembled for cleaning or replacing of parts.

In describing my invention in detail, reference will be made to theaccompanying drawing, in which-- Figure l is a top plan view of aportion of a sink bottom embodying one form of my invention, with a partbroken away to show the chamber and strainer construction;

Figure 2 is a vertical sectional view of the same taken substantially online 2-2 of Fig. 1;

Figure 3 is a'view similar to Fig. l of another form of my invention;and- Figure 4 is a vertical sectional view of the same takensubstantially on the line 4--4 of Fig. 3.

In the drawing, in which like designating characters distinguish likeparts throughout the several views, i indicates a sink bottom having afunnel-shaped, depressed portion 2 constituting a drain opening for thesink and forming a mouth for a strainer chamber 8 which, in theembodiment of my invention illustrated in Figs. 1 and 2, is formedintegrally with said sink bottom.

In said embodiment of my invention, the interior wall of said chamberhas formed thereon an annular shoulder 4 forming a seat for a gasket 5.Said gasket has formed in its outer surface facing the interior wall ofsaid chamber a groove 6 for the reception of cement or solder for fixingsaid gasket in place forming a joint impervious to the seepage of watertherethrough. Said gasket has formed within said chamber and upon theinner surface thereof a finely ground seat 1 adapted to receive thereonand to form a watertight joint with the lip 8 of a strainer 9 dependingwithin said strainer chamber.

Said strainer has secured therein near its 5 mouth, preferably by spotwelding, a transverse yoke in having formed at its middle portion asleeve il through the central aperture ofwhich slides the depending steml2 of a'stopper i3. Said stem carries, between its lower terminal 10 andits juncture with said stopper, a short stud i4; and formed in thesleeve il in communication with the central aperture thereof is avertical groove I5 through which said stud may slidewhen said stopper isrotated to a position in which 15 said stud registers therewith,permitting the stopper to fall to the position shown in dotted lines inFig. 2, in which it closes the mouth of the strainer and prevents theflow of liquids through the drain. When the stopper I3 is lifted 90 tothe open position' shown in section in Fig. 2 and rotated so as to throwthe stud i4 out of register with the groove i5, said stud will rest uponthe upper surface of the sleeve H so as to hold said stopper raised, orin its open position, thus 25 permitting the free passage of liquids andsmall particles of'solids and semi-solids thereby into the strainer 9.

The contacting surfaces of the stopper l3 and the strainer 9 are finelymachined so as to provide a tight seat.

The stopper l3 may be provided with any convenient lifting means, as aknob i8; and the strainer chamber is provided with an outlet, such asthe drain nipple i'l. 35

Manifestly, the stopper 13 may be manually lifted clear of the straineryoke ID, if desired, and, when it is so removed, the strainer 9 may alsobe lifted out of its chamber 3 by grasping the yoke ID with the fingersor any sort of hooked tool; and, when said strainer is so removed, saidyoke l0 affords no considerable impediment to a thorough cleaning of thestrainer. After cleaning, the strainer may be dropped into position, andthe stopper as readily inserted thereinto.

In the modification shown in Figs. 3 and 4, the depressed portion 2' ofthe sink bottom i terminates at a convenient distance below the sinkbottom, and the strainer'chamber l is secured thereto, as by screws orbolts 2 I. The chamber 3' has formed therein an interior annular ledge21 upon which rests the outwardly flared lip I of the strainer 9'. Saidstrainer is provided with a centrally disposed stem 23 extendingupwardly therein from its bottom and terminating in a knob 24 forfacilitating manual removal of strainer, as for cleaning.

Resting upon the lip 8' of the strainer O is a yoke or spider l0. Saidspider comprises a centrally disposed sleeve I I having a centralaperture for the reception or the stem I! of a stopper H. The stem I 2'and the aperture in which it is received are correspondingly threaded sothat by manual rotation of the stopper IS with respect to said spider,the former may be raised or lowered sald within the drain opening. Whenlowered a sum-- cient distance, the circumferential edge 01' saidstopper seats upon the adjacent portion of the chamber 3, the abuttingsurfaces of said stopper and said chamber being finely ground so as toform a substantially watertight joint when in contact.

Rotation of the spider III with the stopper I3 when the same are inposition within the chamber and the former is being rotated to eitherits closing or open position is prevented by means of'one or more pinsor vertical ribs 25 formed upon or attached to the interior surface ofthe wall of the chamber 3, as shown in Fig. 3, said pins or ribs formingstops against which the arms of the spider strike in rotating. The lip8' of the strainer 9 is provided with an indentation or indentations 26for clearing said pins or ribswhen said strainer is being placed withinor removed from its position within the chamber 3.

As will be readily understood, the stopper l3 and the spider I0 may bemanually removed for cleaning by lifting the same out of position, andthe strainer 9 may then also be readily removed by lifting it out of thechamber 3'.

In both forms of my invention illustrated in the accompanying drawingthe depressed portion of the sink bottom is of a suflicient depth andthe elements of my invention are of such dimensions and so disposed thatthe topmost portion of the stopper at ali times lies below the level ofthe adjacent portion of the upper surface of the sink bottom, in eitherthe closed or the open position of the stopper, thus affording noimpediment to the passage of dishes or utensils thereover and exposing,when closed, no obtruding portion liable to be engaged in such a manneras to unseat the stopper and allow the water in the sink to escape.

I claim:

1. A drain fixture for sinks comprising in combination with a drainopening and a strainer chamber therebeneath, a strainer supported withinsaid chamber, a stopper for said opening, and means interposed betweensaid strainer and said stopper whereby the latter may be positioned ineither open or closing position with relation to said opening.

2. A drain fixture for sinks comprising in combination with a drainopening and a strainer chamber therebeneath, a strainer supported withinsaid chamber, a stopper for said opening, and means interposed betweensaid strainer and said stopper whereby the latter may be positioned ineither open or closing position with relation to said opening, saidstopper being removable from said opening by manual manipulation,independently of said strainer and of said stopper-supporting means.

3. A drain fixture for sinks comprising in combination with a drainopening and a strainer chamber therebeneath, a strainer supported withinsaid chamber, a yoke carried by said strainer at or near its mouth, anda stopper for said opening disposed above said strainer and supported inits open position by said yoke.

4. A drain fixture for sinks comprising in combination with a drainopening and a strainer chamber therebeneath, a strainer extending intosaid chamber and having an outwardly flared lip portion which seats uponsaid opening so as to prevent the passage of liquids between the wallsof said opening and said strainer, a stopper for the mouth of saidstrainer, and means interposed between said strainer and said stopperwhereby the latter may be set in either opening or closing position withrespect to the former.

5. A drain fixture for sinks comprising in combination with a drainopening and a strainer chamber therebeneath, a strainer extending intosaid chamber and having an outwardly flared lip portion which seats uponsaid opening so as to prevent the passage or liquids between the wallsof said opening and said strainer, a stopper for the mouth of saidstrainer, and means interposed between said strainer and said stopperwhereby the latter may be set in either opening or closing position withrespect to the former, said stopper being removable independently ofsaid strainer and of said stopper-supporting means.

6. A drain fixture for sinks comprising in combination with a drainopening and a. strainer chamber therebeneath, a strainer extending intosaid chamber and having an outwardly flared lip portion which seats uponsaid opening so as to prevent the passage of liquids between the wallsof said opening and said strainer, a stopper for the mouth of saidstrainer, and means interposed between said strainer and said stopperwhereby the latter may be set in either opening or closing position withrespect to the former, said stopper being removable independently ofsaid strainer and of said stopper-supporting means, and said strainerbeing slidabiy removable from said opening.

7. A drain fixture for sinks comprising in combination with a drainopening and a strainer chamber therebeneath, a strainer supported withinsaid chamber, a yoke carried by said strainer at or near its mouth and astopper for said opening disposed above said strainer and supported inits open position by said yoke, said stopper being slidably removablefrom said yoke.

8. A drain fixture for sinks comprising in combination with a drainopening and a strainer chamber therebeneath, a strainer supported withinsaid chamber, a yoke carried by said strainer at or near its mouth and astopper for said opening disposed above said strainer and supported inits open position by said yoke, said stopper being slidably removablefrom said yoke, and said strainer being slidably removable from saidchamber.

9. A drain fixture for sinks comprising a strainer chamber affixed tothe bottom 01' the sink and having a shoulder formed upon its interiorsurface, a cup-shaped strainer having a flared lip designed to rest uponsaid shoulder in such a manner as to prevent the fiowage oi liquidstherebetweeu, said strainer being slidably removable from said strainerchamber, a yoke carried by said strainer near its mouth, a stopper forthe mouth of said strainer, and means interposed between said stopperand said yoke whereby the former may be manually set in either closingor opening position with respect to said strainer, said means, when saidstopper is set in its open position, retaining the same in saidposition.

